The high-capacity TS-855X has six 3.5-inch SATA drive bays (for HDDs), two 2.5-inch SATA drive bays (for SSDs) and an 8-core processor supporting Intel® QuickAssist Technology (QAT), greatly assisting businesses in deploying a data storage and virtualization environment. The built-in 10GbE/2.5GbE high-speed connectivity helps realize fast data access, backup/restoration, file server, and virtualization applications. Running the QTS operating system as standard, the TS-855X can be switched to use the ZFS-based QuTS hero operating system based on your requirements. The TS-855X will be available and supported by QNAP for an extended period (up to 2030), ideal for businesses requiring matching NAS models deployed in long-term projects.
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2.5GbE/10GbE connectivity
Dual-port 2.5GbE and single-port 10GbE connectivity. The dual 2.5GbE ports also support SMB Multichannel for up to 5 Gbps!
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Flexible storage expansion
Connect TL-R1620Sep-RP / TL-R1220Sep-RP JBOD units to the TS-855X for adding up to 48 additional drive capacity to match your business growth.
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Flexible PCIe Gen3 expansion
Features two PCIe Gen 3 slots for installing 5/10/25GbE network cards, QM2 cards or Fibre Channel cards.
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Optimized SSD performance
Dual M.2 PCIe NVMe slots enable SSD caching or SSD storage pool for the system drive of QuTS hero.
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Virtual machines and containers
Host virtual machines and containerized apps on one device to optimize resource utilization and IT budgeting. Supports SR-IOV.
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All-inclusive data backup and restoration
A reliable backup center for your PC/Macs, virtual machines, containers, cloud data, and SaaS data.
Available Models
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TS-855X-8G
Intel ® Atom® C5125 8-core processor, 2.8GHz, 8 GB non-ECC UDIMM DDR4 (1 x 8 GB)
Ultimate 8-core performance with up to 128 GB RAM and Intel® QuickAssist Technology
The TS-855X delivers exceptional 8-core performance for running multiple concurrent tasks. AES-NI encryption and Intel® QuickAssist Technology (QAT) are supported to offload resource-demanding compression and improving IPsec/SSL cryptography performance. The TS-855X comes with four UDIMM DDR4 slots (8 GB preinstalled) that can be upgraded to 128 GB ECC RAM for higher workloads. Combining high performance, reliability, and capacity, the TS-855X is an all-round budget-friendly storage solution for diverse applications, such as file servers, high-speed storage/backup/recovery, and virtualization.
| Windows File Transfer (2 x 2.5GbE) | Download
589 MB/s
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Upload
586 MB/s
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|---|---|---|
| Windows File Transfer with Encryption (2 x 2.5GbE) | Download
575 MB/s
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Upload
589 MB/s
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| SMB Sequential Throughput 1MB ( 1 x 10GbE) | Read
1181 MB/s
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Write
1181 MB/s
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| SMB Sequential Throughput 1MB (2 x 25GbE) | Read
3505 MB/s
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Write
2288 MB/s
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Tested in QNAP Labs. Figures may vary by environment.
Test Environment:
NAS : with QXG-25G2SF-CX6
OS : QTS 5.0.1
Volume type : 8 x Samsung 860 EVO 1 TB SATA , RAID 5, thick volume
Client PC : Windows Server 2016 Standard, Intel i7-6700 3.4GHz, 64GB RAM
IOmeter : 16MB, 30-sec ramp up time, 3-min seq. run time, 16 workers, 4-outstanding
Build a High-Speed 10GbE/2.5GbE Network Environment
Featuring two native 2.5GbE RJ45 (2.5G/1G/100M) LAN ports and a 10GBASE-T (2.5G/1G/100M) port, the TS-855X satisfies bandwidth and reliability demanding business applications including virtualization, large file transfers, high-speed backup/restoration, and real-time applications. Combine the dual 2.5GbE ports with SMB 3.0 Multichannel for up to 5 Gbps fault-tolerant connections! QNAP also offers numerous managed/unmanaged 2.5GbE/10GbE switches, assisting organizations in implementing high-speed, secure, and scalable network environments without going over budget.
Learn More: SMB 3.0 Multichannel, QNAP 10GbE network solution, QNAP 2.5GbE network solution, QNAP switches
M.2 PCIe slots for SSD caching and accelerated AI-powered image recognition
The TS-855X comes with two M.2 PCIe Gen 3 slots that allow for installing M.2 2280 NVMe SSDs (including SSD brands of Micron®, Seagate® and WD®) or Edge TPU (sold separately) to boost NAS performance.
2 x NVMe Gen 3 x4 M.2 2280 SSD Slots
Upgrade to 25GbE network with PCIe expandability
The TS-855X has two PCIe Gen 3 x4 slots that allow for installing various expansion cards to increase its application potential.
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5/10/25GbE network card
Enable lightning-fast throughput for bandwidth-demanding tasks (virtualization, huge data transmission, and fast backup/restore).
Learn More: QNAP network expansion cards
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QM2 card
Add M.2 SSDs or 2.5GbE/10GbE connectivity to the TS-855X for optimized performance and bandwidth.
Learn More: QM2 card
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SAS / SATA storage expansion cards
Connect the TS-855X to SAS 12Gb/s or SATA 6Gb/s expansion units for huge storage capacity.
Learn More: QNAP storage expansion cards, Compatible expansion enclosures
Direct 2.5GbE connectivity for up to ten PC/workstations
Your team needs a high-speed environment and productivity boost, and the TS-855X delivers with two 2.5GbE ports. By installing two 4-port PCIe network cards (QXG-2G4T-I225) the TS-855X can directly connect to up to ten PC/workstations – no switch required – for faster large file transfer/backup, video editing, and much more.
All-in-one solution for hosting virtual machines and containers
By running multiple virtual machines and containers on the TS-855X, you can deploy multi-tenant environments and applications to increase management efficiency and save hardware costs. Coupled with the Network & Virtual Switch app that boosts interoperability between virtual machines, containers, QNAP NAS, and other physical devices on the network, you can flexibly allocate physical and virtual network resources to simplify network deployment.
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Virtualization Station
Run multiple Windows®, Linux®, UNIX®, Android™, and QuTScloud virtual machines and access them via a web browser or Virtual Network Computing (VNC). Businesses can run virtualized server applications on a single NAS without needing additional physical servers.
Learn More: Virtualization Station, QuTScloud on hypervisors
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Container Station
Experience Docker®, LXD, and Kata Containers lightweight virtualization technologies, download apps from the built-in Docker Hub Registry®, import/export containers, and create abundant microservices.
Learn More: Container Station
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Linux Station
Run Linux® applications (including apps from the Software Center) directly on the NAS and remotely access the Linux® desktop from a web browser. The open-source Linux® platform is also ideal for Internet of Things development.
Learn More: Linux Station
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Single Root I/O Virtualization (SR-IOV)
By installing an SR-IOV compatible PCIe SmartNIC in the TS-855X, you can allocate bandwidth resources from a physical network card directly to VMs, increasing network efficiency and reduced CPU overheads.
Note: SR-IOV is supported by specific QNAP NAS models and should work with SR-IOV compatible adapters. Click here to check compatibility.
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QuTScloud virtual NAS
QuTScloud is a virtual appliance based on the QTS operating system. Enterprises can quickly launch QuTScloud on hypervisors including Linux® KVM, Microsoft® Hyper-V, and VMware ESXi™ to acquire advanced NAS features without requiring additional NAS hardware.
Learn More: QuTScloud for private cloud
Comprehensive security and privilege settings
The TS-855X is loaded with flexible privilege settings and security measures. Besides IP blocking, QNAP Authenticator, HTTPS connection, there are more apps that help ensure optimal NAS protection against threats like malware and hackers.
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myQNAPcloud secures remote access
myQNAPcloud allows convenient connection to the TS-855X through the Internet without any complex DDNS settings. To ensure your remote access service is secure, myQNAPcloud strengthens keys on SSL Certificates to 2048-bits.
Learn More: myQNAPcloud service
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Simplified privilege settings
The TS-855X supports comprehensive access right settings for shared folders, Azure Active Directory Domain Services (Azure AD DS), LDAP, and Windows ACL to help IT staff efficiently manage user accounts and access rights for multiple NAS systems.
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QuFirewall protection
Supports IPv6, firewall access lists, and GeoIP filtering to restrict access based on geographical locations for higher NAS network security.
Learn More: QuFirewall
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Superior security with QVPN
A virtual private network (VPN) allows secure access to network resources and services across public networks. QVPN supports creating a VPN client, using the TS-855X as a VPN server, and WireGuard® VPN service with an easy-to-use interface for setting up a secure connection.
Learn More: QVPN
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Security Center
A security portal for the TS-855X to proactively detect NAS status, unusual file activity and potential security threats – offering instant protective measures against vulnerabilities to safeguard your system and data.
Learn More: Security Center
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Malware Remover
Regularly scan your TS-855X using the latest malware definitions. If infected files are detected, they will be immediately removed to ensure NAS data security.
Learn More: Malware Remover
Smart surveillance solution for 24/7 security
QVR Elite is QNAP’s subscription-based smart surveillance solution, allowing you to easily build a surveillance system with lower TCO and higher scalability. Recordings are saved as MP4 files, allowing playback on nearly every device. QVR Elite also integrates QNAP AI-based solutions to build smart facial recognition for retail and door access systems with QNAP NAS. You can arrange a dedicated, independent storage space for surveillance data on the TS-855X and enjoy simplified camera management, storage space allocation, camera live viewing and playback.
Flexible and economical storage expansion
QNAP provides easy ways to expand your storage capacity. Here are several ways to expand your TS-855X storage as needed to accommodate data and business growth.
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Attach QNAP expansion enclosures
Connect expansion enclosures to the TS-855X, and manage NAS storage expansion with the user-friendly Storage & Snapshots Manager app.
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Mount cloud storage or remote file servers
Mount cloud storage or remote file servers to expand the capacity of the TS-855X while also centrally managing files on the NAS, cloud storage, and remote devices.
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Migrate to a new NAS
Install your NAS hard drives into a larger QNAP NAS and retain all your existing data and configurations.
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Upgrade RAID capacity
Hot-swap lower-capacity drives with larger-capacity drives to expand your NAS capacity so it can grow with your business.
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More productivity-boosting applications
The TS-855X provides an App Center that includes feature-rich apps to expand your NAS potential!
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QuMagie
An AI-powered photo management app, supporting automated photo categorization with AI Albums, iOS® Live Photo display, and powerful search tools for the ultimate photo management and sharing solution.
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QuObjects
Run a high-performance S3 compatible development environment on your TS-855X to simplify service development workflows from testing to production. You can also move cold data from the cloud to an on-premises QuObjects to save cloud storage costs.
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Notification Center
Consolidates all system events, alerts, and notifications for smooth and easy NAS management, keeping you always informed of your NAS status.
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QmailAgent
The best email backup solution that allows you to easily backup/recover and manage multiple email accounts in their native format with strong security and data integrity.
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QuFTP
The TS-855X can perform as an FTP server featuring SSL/TLS encryption, QoS bandwidth controls, and permission settings for efficiently and securely transferring large amounts of data. FTP Client is also supported.
TS-855X-8G
| CPU | Intel ® Atom® C5125 8-core processor, 2.8GHz |
| CPU Architecture | 64-bit x86 |
| Floating Point Unit | |
| Encryption Engine | (AES-NI) |
| System Memory | 8 GB non-ECC UDIMM DDR4 (1 x 8 GB) |
| Maximum Memory | 128 GB (4 x 32 GB) |
| Memory Slot | 4 x U-DIMM DDR4 Support ECC memory |
| Flash Memory | 5GB (Dual boot OS protection) |
| Drive Bay | 6 x 3.5-inch + 2 x 2.5-inch SATA 6Gb/s, 3Gb/s |
| Drive Compatibility | 3.5-inch bays: 3.5-inch SATA hard disk drives 2.5-inch SATA solid state drives2.5-inch bays: 2.5-inch SATA solid state drives |
| Hot-swappable |
The following are not hot-swappable: M.2 SSDs, SSD cache drives, SSDs using PCIe expansion slots.
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| M.2 Slot | 2 x M.2 2280 PCIe Gen 3 x4 slots
The M.2 SSD is not included as standard.
M.2 SSD operations can easily generate excessive heat. It is recommended to install a heatsink (from QNAP or a third-party provider) on the M.2 SSD. |
| SSD Cache Acceleration Support | |
| SR-IOV | |
| 2.5 Gigabit Ethernet Port (2.5G/1G/100M) | 2 (2.5G/1G/100M/10M) |
| 10 Gigabit Ethernet Port | 1 x 10GBASE-T |
| 25 Gigabit Ethernet Port | Optional via PCIe expansion card |
| Wake on LAN (WOL) |
Only the 2.5GbE port
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| Jumbo Frame | |
| PCIe Slot | 2 Slot 1: PCIe Gen 3 x4 Slot 2: PCIe Gen 3 x4 Card dimensions for PCIe slot 1：260 x 111.15 x 18.76 mm / 10.25 x 4.38 x 0.74 inches
Card dimensions for PCIe slot 2：150 x 68.9 x 18.76 mm / 5.90 x 2.71 x 0.74 inches. |
| USB 2.0 port | 1 |
| USB 3.2 Gen 1 port | 3 |
| Form Factor | Tower |
| LED Indicators | Power/Status, LAN, USB, HDD1-6, SSD 1-2, M.2 SSD 1-2 |
| Buttons | Power, Reset, USB Auto Copy |
| Dimensions (HxWxD) | 225 × 292.9 × 319.8 mm
Dimensions do not include foot pad (foot pad may be up to 30mm / 1.18 inches high depending on model)
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| Weight (Net) | 10.04 kg |
| Weight (Gross) | 10.04 kg |
| Operating Temperature | 0 – 40°C (32°F – 104°F) |
| Storage Temperature | -20 – 70°C (-4°F – 158°F) |
| Relative Humidity | 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F) |
| Power Supply Unit | 250W PSU, 100~240V |
| Power Consumption: Operating Mode, Typical | 86.96 W
Tested with drives fully populated.
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| Fan | System fan: 2 x 80mm, 12VDC CPU fan: 1 x 90mm, 12VDC |
| Other Interfaces | Kensington security slot |
| System Warning | Buzzer |
| Kensington Security Slot | |
| Standard Warranty | 3 |
| Max. Number of Concurrent Connections (CIFS) – with Max. Memory | 2500 |
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